Positive I/O Bus Interface

This document contains the engineering schematics for the M8350 Positive I/O Bus Interface module. It consists of three sheets detailing the board layout, component placement, logic gate connections, and electrical wiring.

• Sheet 1 provides a physical layout of the module, including a comprehensive parts list, component coordinates, and a decoupling capacitor arrangement for the integrated circuits.
• Sheet 2 illustrates the primary logic circuitry, showing the arrangement of 7416 buffers, 6380 gates, and transistor-based signal conditioning circuits for managing I/O bus signals.
• Sheet 3 details the timing and control logic, featuring monostable multivibrators (74123) for strobe generation, interrupt handling circuitry, and connections to various bus control signals (such as AC Clear, Int Rqst, and Skip Bus).

The documentation is intended for hardware maintenance, repair, or production assembly of the interface module.